7007UCDB Duplex Angular Contact Ball Bearing 35×62×28mm Back-to-Back DB Arrangement 15° Contact Angle Precision Spindle Bearing

• 7007UCDB is a pre-matched duplex angular contact ball bearing set with back-to-back (DB) arrangement. It adopts 15° contact angle and open structure. Two single 7007UC bearings are precisely paired at factory to achieve stable preload. The DB back-to-back configuration provides high rigidity and can withstand combined radial load and bidirectional axial load simultaneously. Made of high-quality chrome bearing steel, this bearing set performs excellently at medium and high speeds, widely used for precision machine tool spindles and high-speed rotating automation equipment.

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• Factory pre-matched DB back-to-back duplex set, no on-site fitting required
• 15° contact angle, balanced capacity of radial and axial loads
• Back-to-back arrangement offers larger moment rigidity and supports bidirectional axial force
• Open structure, convenient for re-lubrication, suitable for high-speed operation
• Low vibration, high rotational accuracy, available in P4/P5 precision grades
• Polyamide cage with low friction and stable high-speed performance

• CNC machine tool spindles
• High-speed grinding equipment
• Precision automation rotary units
• Robotics joint transmission
• High-speed printing machinery
• Precision testing instruments

*Contact our engineering team today for professional bearing selection guidance and technical parameters.

• High-purity GCr15 bearing steel and precise heat treatment for stable hardness and wear resistance.
• Strict pairing inspection for duplex bearings to guarantee consistent preload and high running accuracy.
• Multiple precision classes (P4/P5) and preload options to meet different equipment requirements.
• Complete stock for matched angular contact bearing sets, support sample testing and bulk orders.
• Provide professional technical consultation and OEM customized marking service.

*Place bulk orders with GQZ, enjoy stable stock, short lead time and reliable after-sales service.